EASA AD No.: 2007-0003R1 

EASA Form 110 Page 1/2 

EASA AIRWORTHINESS DIRECTIVE 

AD No: 2007-0003R1 

Date: 15 January 2009 

Note: This Airworthiness Directive (AD) is issued by EASA, acting in accordance with 

Regulation (EC) No 216/2008 on behalf of the European Community, its Member States and 

of the European third countries that participate in the activities of EASA under Article 66 of 

that Regulation.

This AD is issued in accordance with EC 1702/2003, Part 21A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the 

continuing airworthiness of an aircraft shall be ensured by accomplishing any applicable ADs. Consequently, no person may operate 

an aircraft to which an Airworthiness Directive applies, except in accordance with the requirements of that Airworthiness Directive 

unless otherwise specified by the Agency [EC 2042/2003 Annex I, Part M.A.303] or agreed with the Authority of the State of Registry 

[EC 216/2008, Article 14(4) exemption]. 

Type Approval Holder’s Name : 

ROLLS-ROYCE plc 

Type/Model designation(s) : 

RB211 Trent 800 series Engines 

TCDS Number : UK-CAA 1051 

Foreign AD : Not applicable 

Supersedure : This AD revises EASA AD 2007-0003 dated 08 January 2007. 

ATA 05 Time Limits – Engine Critical Parts Lives 

Manufacturer(s): Rolls-Royce plc 

Applicability: Rolls-Royce RB211 Trent 895-17, 892-17, 892B-17, 884-17, 884B-17, 

877-17and 875-17 engines 

These engines are known to be installed on, but not limited to, Boeing 777 

series aeroplanes. 

Reason: The original issue of this Airworthiness Directive mandates revised lives and life 

accounting methodology of the Trent 800 engine Critical Parts. 

Revision of the Critical Part lives has been necessary due to actual operational 

flight profiles not conforming to those assumed at entry into service and is 

associated with a revised Flight Profile Monitoring methodology (originally based 

on engine thrust rating but now based on operating shaft speeds) introduced by 

Rolls-Royce. 

The new Flight Profile Monitoring methodology allows for seven new profiles 

replacing the previous three. Six of these profiles, A to F, are intended to cover 

the requirements of most operators. The Declared Life (in Standard Duty Cycles) 

is published for each part and life usage may be accounted by factoring the 

number of flights flown. The factor to be used is defined according to the Flight 

Profile which is applicable to the fleet. 

The seventh profile, called “Heavy”, will be applicable to fleets operating outside 

profiles A to F. A separate Declared Life (in Flight Cycles) is published for each 
EASA AD No.: 2007-0003R1 

EASA Form 110 Page 2/2 

part and life usage is accounted without factoring. 

This AD is necessary as life reductions are applicable in some cases and failure 

to comply with the revised life limits could result in an unsafe condition. 

Revision 1 of this AD introduces an updated reference to the related Rolls-Royce 

Service Bulletin. Also the additional Information has been removed from the 

“Reason” paragraph. This addressed related ADs and is no longer considered to 

be necessary. 

Effective Date: 22 January 2007 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

Not later than 31 January 2007, amend the Engine Maintenance Schedule by 

incorporating the revised Trent 800 engine declared life limits and associated 

Beta factors (where applicable) for Critical Parts defined in Rolls-Royce Service 

Bulletin RB211-72-AE935 rev 7, or later approved revisions, Appendix 2 of 

Section 3 of the Service Bulletin. 

Note 1: For the purposes of compliance with this AD, compliance with EASA 

AD 2007-0003 original issue is deemed to be valid.

Note 2: The revised lives will also be published in Chapter 5 of the Rolls-Royce 

Trent 800 Time Limits Manual after 31 January 2007. 

Ref. Publications: Rolls-Royce RB211 Propulsion System Non Modification Service Bulletin 

Alert 72-AE935 Revision 7. 

The use of later approved revisions is acceptable for compliance with the 

requirements of this AD. 

Remarks : 1. If requested and appropriately substantiated the responsible EASA 

manager for the related product has the authority to accept Alternative 

Methods of Compliance (AMOCs) for this AD. 

2. The required actions and the risk allowance have granted the issuance 

of a Final AD with Request for Comments, postponing the public 

consultation process after publication. 

3. Enquiries regarding this Airworthiness Directive should be referred to the 

Airworthiness Directive Focal Point - Certification Directorate, EASA. 

E-mail: ADs@easa.europa.eu

4. For any question concerning the technical content of the requirements in 

this AD, please contact Rolls-Royce plc. PO Box 31, Derby, DE24 8BJ, 

United Kingdom. Phone: +44 (0) 1332 242424, Fax: +44 (0) 1332 

249936.